905
FNCA52 TJSJ 220730
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 AM AST WED APR 22 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-222000-
SOUTHEAST COASTAL PLAINS-
330 AM AST WED APR 22 2026
TODAY TONIGHT THU
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 10 40
TEMP (24H TREND) 88 (+2) 67 (-2) 88
RH % (24H TREND) 51 (-2) 90 (-1) 51
WIND 20FT/EARLY(MPH) E 9 NE 8 E 8
WIND 20FT/LATE(MPH) E 10 NE 6 SE 10
MIXING HGT(FT-AGL/MSL)6060 4750
TRANSPORT WND (MPH) E 6 E 5
VENT RATE (KT-FT) 30300 19000
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-222000-
SOUTHERN HILLS-
330 AM AST WED APR 22 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 10 50
TEMP (24H TREND) 84 (+3) 63 (-4) 84
RH % (24H TREND) 55 (-6) 95 (+2) 55
WIND 20FT/EARLY(MPH) E 8 NE 9 E 5
WIND 20FT/LATE(MPH) E 9 NE 6 SE 8
MIXING HGT(FT-AGL/MSL)6390 5770
TRANSPORT WND (MPH) NE 6 E 3
VENT RATE (KT-FT) 31950 17310
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-222000-
NORTH COASTAL PLAINS-
330 AM AST WED APR 22 2026
TODAY TONIGHT THU
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 10 30
TEMP (24H TREND) 86 (0) 67 (-3) 86
RH % (24H TREND) 54 (-6) 95 (+1) 53
WIND 20FT/EARLY(MPH) E 9 E 10 E 6
WIND 20FT/LATE(MPH) NE 10 SE 9 NE 11
MIXING HGT(FT-AGL/MSL)5320 4850
TRANSPORT WND (MPH) E 8 E 6
VENT RATE (KT-FT) 37240 24250
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-222000-
NORTHERN HILLS-
330 AM AST WED APR 22 2026
TODAY TONIGHT THU
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 10 40
TEMP (24H TREND) 85 (+1) 65 (-2) 85
RH % (24H TREND) 57 (-4) 96 (-2) 54
WIND 20FT/EARLY(MPH) E 9 E 9 E 5
WIND 20FT/LATE(MPH) NE 9 SE 8 NE 9
MIXING HGT(FT-AGL/MSL)5990 5900
TRANSPORT WND (MPH) E 7 E 3
VENT RATE (KT-FT) 35940 17700
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-222000-
WEST COAST-
330 AM AST WED APR 22 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 10 50
TEMP (24H TREND) 87 (+1) 66 (-3) 87
RH % (24H TREND) 54 (-5) 92 (-2) 53
WIND 20FT/EARLY(MPH) E 10 E 13 SE 8
WIND 20FT/LATE(MPH) E 11 E 12 W 6
MIXING HGT(FT-AGL/MSL)5970 4800
TRANSPORT WND (MPH) E 5 S 2
VENT RATE (KT-FT) 23880 9600
DISPERSION 5 4
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-222000-
EASTERN INTERIOR-
330 AM AST WED APR 22 2026
TODAY TONIGHT THU
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 10 40
TEMP (24H TREND) 84 (+1) 65 (-4) 85
RH % (24H TREND) 55 (-5) 95 (+1) 54
WIND 20FT/EARLY(MPH) E 8 NE 9 E 5
WIND 20FT/LATE(MPH) NE 9 E 6 E 9
MIXING HGT(FT-AGL/MSL)6120 6770
TRANSPORT WND (MPH) NE 7 E 5
VENT RATE (KT-FT) 36720 27080
DISPERSION 5 5
DSI 6 1 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-222000-
LUQUILLO MOUNTAIN RANGE-
330 AM AST WED APR 22 2026
TODAY TONIGHT THU
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 10 40
TEMP (24H TREND) 80 (+2) 64 (-3) 81
RH % (24H TREND) 59 (-7) 96 (+1) 60
WIND 20FT/EARLY(MPH) E 6 NE 6 E 5
WIND 20FT/LATE(MPH) NE 8 LGT/VAR E 8
MIXING HGT(FT-AGL/MSL)5320 4600
TRANSPORT WND (MPH) NE 6 E 5
VENT RATE (KT-FT) 26600 18400
DISPERSION 5 5
DSI 6 1 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-222000-
CENTRAL MOUNTAIN RANGE-
330 AM AST WED APR 22 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 10 60
TEMP (24H TREND) 83 (+4) 61 (-4) 83
RH % (24H TREND) 57 (-7) 98 (+1) 56
WIND 20FT/EARLY(MPH) E 6 NE 10 E 5
WIND 20FT/LATE(MPH) NE 8 E 9 NE 6
MIXING HGT(FT-AGL/MSL)6500 7200
TRANSPORT WND (MPH) E 5 N 2
VENT RATE (KT-FT) 26000 14400
DISPERSION 5 5
DSI 6 1 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-222000-
CAYEY MOUNTAIN RANGE-
330 AM AST WED APR 22 2026
TODAY TONIGHT THU
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 10 30
TEMP (24H TREND) 81 (+2) 63 (-3) 81
RH % (24H TREND) 59 (-3) 97 (+1) 59
WIND 20FT/EARLY(MPH) NE 8 NE 8 E 5
WIND 20FT/LATE(MPH) NE 8 NE 5 E 8
MIXING HGT(FT-AGL/MSL)5860 5410
TRANSPORT WND (MPH) NE 7 E 5
VENT RATE (KT-FT) 35160 21640
DISPERSION 5 5
DSI 6 1 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-222000-
VIEQUES-
330 AM AST WED APR 22 2026
TODAY TONIGHT THU
CLOUD COVER MCLEAR CLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 10 30
TEMP (24H TREND) 85 (0) 72 (-1) 85
RH % (24H TREND) 52 (-3) 81 (-1) 52
WIND 20FT/EARLY(MPH) E 10 NE 11 E 8
WIND 20FT/LATE(MPH) NE 10 NE 10 E 9
MIXING HGT(FT-AGL/MSL)4360 4050
TRANSPORT WND (MPH) E 10 E 9
VENT RATE (KT-FT) 39240 32400
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-222000-
CULEBRA-
330 AM AST WED APR 22 2026
TODAY TONIGHT THU
CLOUD COVER MCLEAR CLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 10 30
TEMP (24H TREND) 86 (0) 73 (-2) 85
RH % (24H TREND) 51 (-5) 79 (-1) 52
WIND 20FT/EARLY(MPH) E 10 NE 10 E 8
WIND 20FT/LATE(MPH) NE 9 E 10 E 8
MIXING HGT(FT-AGL/MSL)4090 3900
TRANSPORT WND (MPH) E 10 E 9
VENT RATE (KT-FT) 36810 31200
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-222000-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 AM AST WED APR 22 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 10 40
TEMP (24H TREND) 88 (+2) 67 (-3) 88
RH % (24H TREND) 50 (-2) 90 (+1) 49
WIND 20FT/EARLY(MPH) E 10 NE 12 E 9
WIND 20FT/LATE(MPH) E 11 NE 12 SE 9
MIXING HGT(FT-AGL/MSL)6390 5010
TRANSPORT WND (MPH) E 3 SE 5
VENT RATE (KT-FT) 19170 20040
DISPERSION 5 5
DSI 6 2 5
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-222000-
SAINT THOMAS AND SAINT JOHN-
330 AM AST WED APR 22 2026
TODAY TONIGHT THU
CLOUD COVER MCLEAR CLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 10 20
TEMP (24H TREND) 85 (+1) 72 (-3) 85
RH % (24H TREND) 50 (-6) 80 (0) 51
WIND 20FT/EARLY(MPH) E 10 NE 10 E 8
WIND 20FT/LATE(MPH) NE 9 E 10 E 8
MIXING HGT(FT-AGL/MSL)3750 3750
TRANSPORT WND (MPH) E 12 E 9
VENT RATE (KT-FT) 37500 30000
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-222000-
ST CROIX-
330 AM AST WED APR 22 2026
TODAY TONIGHT THU
CLOUD COVER MCLEAR CLEAR MCLEAR
PRECIP TYPE SHOWERS NONE SHOWERS
CHANCE PRECIP (%) 10 0 10
TEMP (24H TREND) 86 (+1) 71 (-3) 86
RH % (24H TREND) 53 (-7) 84 (0) 54
WIND 20FT/EARLY(MPH) NE 11 NE 10 E 8
WIND 20FT/LATE(MPH) NE 9 NE 10 E 9
MIXING HGT(FT-AGL/MSL)4630 4190
TRANSPORT WND (MPH) NE 9 E 6
VENT RATE (KT-FT) 37040 20950
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
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